Contractor profiles
- Septivac Service
- SGB Septics – Shannon Burchill
- Sharpworks Landscaping
- Site Ex Inc.
- Siteworks Construction
- Skootamatta Environmental Consulting Inc.
- Slagter Construction Ltd
- Sludge Mapper
- Smith Excavating, Grading & Septic Services
- SMV Forestry & Construction
- Snork's Septic Service
- Snorks Septic Service
- Snow Brothers Contracting
- Soil Surgeons Excavating and Grading Inc.
- St. Bernard Septic Design and Consult
- Star Toilet Rentals
- Stealth Environmental
- Stephens Excavating
- Stonecairn Consulting Inc.
- Storring Septic Service
- Stoughton Septic
- Stoughton Septic
- Strelow Landworks
- Strik Baldinelli Moniz Ltd
- Suffern Sanitation
- Summit Aggregates, a division of Miller Paving Ltd.
- Summit Services Inc
- Super Save Toilet Rentals
- Superior Potty's
- Swaffield Septic Service
- T.G. Carroll Cartage Ltd.
- Tailor-Made Landscapes Inc
- Tamarack North Ltd.
- Tarstone Canada Ltd
- Tatham Engineering Ltd.
- Taylor Farm Sand and Gravel
- Taylor Giesbrecht
- TDC Excavating Ltd.
- Ted Smith Construction Ltd
- Temagami Barge Limited